Question

what is checmical and physical change ...​

Answer 1

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• ᴛʜᴇ ᴅɪғғᴇʀᴇɴᴄᴇ ʙᴇᴛᴡᴇᴇɴ ᴀ ᴘʜʏsɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ᴀɴᴅ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ɪs ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ. ɪɴ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ, ᴛʜᴇʀᴇ ɪs ᴀ ᴄʜᴀɴɢᴇ ɪɴ ᴛʜᴇ ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ᴏғ ᴛʜᴇ sᴜʙsᴛᴀɴᴄᴇs ɪɴ ǫᴜᴇsᴛɪᴏɴ; ɪɴ ᴀ ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ ᴛʜᴇʀᴇ ɪs ᴀ ᴅɪғғᴇʀᴇɴᴄᴇ ɪɴ ᴛʜᴇ ᴀᴘᴘᴇᴀʀᴀɴᴄᴇ, sᴍᴇʟʟ, ᴏʀ sɪᴍᴘʟᴇ ᴅɪsᴘʟᴀʏ ᴏғ ᴀ sᴀᴍᴘʟᴇ ᴏғ ᴍᴀᴛᴛᴇʀ ᴡɪᴛʜᴏᴜᴛ ᴀ ᴄʜᴀɴɢᴇ ɪɴ ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ.

Answer 2

Answer:

1)No new substance is formed in the physical change. A new substance is formed in a chemical change.

2)Physical change is temporary change. A chemical change is a permanent change. ... A lot of heat or light energy is absorbed or given out in a chemical change.

hope this will help you